Dr. Crusher falls for someone who's not at all what she expects him to be.



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Episode cast overview:
Governor Leka Trion
Nicole Orth-Pallavicini ...
William Newman ...
Franc Luz ...


Doctor Beverly Crusher is secretly in romantic love since weeks with Federation ambassador Odan, who is on his way to the Alpha moon which is rebelling against the planet they were colonized from and cause potentially fatal environmental damage to its Beta moon. Crusher ignores her humanoid lover's body has an alien symbiont in his entrails, but Counselor Deanna Troi empathetically senses emotional swings which set her on the trail. Then an unrequested escort vessel from the Beta moon approaches and attacks the Enterprise shuttle which Commander Will Riker was piloting to bring the ambassador to his destination. When Riker brings Odan back to the Enterprise badly wounded, Crusher's diagnose reveals the 'parasite' and she learns his true identity. Odan urgently needs another humanoid host to perform his peace mission, for which task Riker is chosen... Written by KGF Vissers

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Release Date:

11 May 1991 (USA)  »

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Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


First appearance of the conjoined symbiotic race of the Trill, and only Star Trek: The Next Generation (1987) appearance. The Trill would appear regularly on Star Trek: Deep Space Nine (1993), primarily with the characters of the Dax line of lives. See more »


When a renegade ship attacks the shuttle carrying the ambassador and Commander Riker, Captain Picard inexplicably does nothing to protect the shuttle--and his first officer. The Enterprise could easily disable the attacking ship without destroying it, yet all the Enterprise does is lock a tractor beam onto the shuttle, effectively allowing the shuttle to be a sitting duck until it is within the Enterprise's shield bubble. See more »


Riker Odan: They're reasonable people. They're just trapped in their own anger.
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Star Trek: The Next Generation Main Title
Composed by Jerry Goldsmith and Alexander Courage
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User Reviews

Dr. Crusher considers polygamy.
20 November 2014 | by (Bradenton, Florida) – See all my reviews

When Star Trek fans see this episode today, the mystery isn't so mysterious. After all, one of the cast of "Star Trek: Deep Space 9" was supposed to be of the Trill--so the notion of having a body as a host and a sentient separate being inside isn't surprising. Back when "The Host" debuted, however, this was all new and probably surprised more than a few of the fans. That's because Dr. Crusher has fallen in love with Ambassador Odan and doesn't realize that as a Trill he also has one of these beings living inside. Now this isn't a case of "Invasion of the Body Snatcher"--the relationship is voluntary and both sides benefit from this relationship. However, Dr. Crusher isn't prepared for this and only learns about this bonding when Odan is injured and his host body dies! In a pinch, to keep him alive, the thing known as 'Odan' temporarily is hosted by Riker--an awkward situation for the Doctor, to say the least! How does all this play out---well, see the show to find out for yourself.

This was a great introduction to the Trill and made for a very interesting episode. It also offers some interesting bisexual subtext--something which might surprise some viewers. Well done overall.

4 of 7 people found this review helpful.  Was this review helpful to you?

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